Table 3.
Demographic characteristics of the enrolled population in China in 2013
| Variable | Number | Proportion(%) |
|---|---|---|
| All | 299,610 | 100.00 |
| Sex | ||
| Male | 150,461 | 50.2 |
| Female | 149,149 | 49.8 |
| Age group | ||
| 0 ~ | 51,537 | 17.2 |
| 15 ~ | 32,312 | 10.8 |
| 25 ~ | 40,259 | 13.4 |
| 35 ~ | 48,363 | 16.1 |
| 45 ~ | 47,675 | 15.9 |
| 55 ~ | 45,195 | 15.1 |
| 65 ~ | 21,685 | 7.2 |
| 75 ~ | 10,658 | 3.6 |
| 85 ~ | 19,26 | 0.6 |
| Ethnicity | ||
| Han | 268,145 | 89.5 |
| Other | 31,465 | 10.5 |
| Occupation | ||
| Unknown | 13,757 | 4.6 |
| Child/Student | 63,867 | 21.3 |
| Housework/Unemployment | 17,627 | 5.9 |
| Teacher | 3103 | 1.0 |
| Service provider | 6132 | 2.1 |
| Health-care worker | 1155 | 0.4 |
| General worker | 37,639 | 12.6 |
| Farmer | 104,926 | 35.0 |
| Migrant worker | 8951 | 3.0 |
| Retirement | 19,999 | 6.7 |
| Other | 22,454 | 7.5 |
| Marital status | ||
| Married | 190,635 | 63.6 |
| Single/divorced | 99,173 | 33.1 |
| Unknown | 9802 | 3.3 |
| Education level | ||
| Unknown, | 10,491 | 3.5 |
| Illiterate or semi-illiterate, | 37,016 | 12.4 |
| Elementary school, | 77,294 | 25.8 |
| Secondary school, | 146,082 | 48.8 |
| College and above | 28,727 | 9.6 |
| Previous TB case | ||
| Yes | 1595 | 0.5 |
| No | 298,015 | 99.5 |
| HIV/AIDS | ||
| Yes | 59 | < 0.1 |
| No | 299,551 | > 99.9 |
| Known diabetes | ||
| Yes | 5150 | 1.7 |
| No | 294,460 | 98.3 |
| Close contact | ||
| Yes | 378 | 0.1 |
| No | 299,232 | 99.9 |
| BMI level | ||
| < 18.5 | 18,031 | 6.0 |
| 18.5 ≤ BMI < 24.0 | 160,854 | 53.7 |
| 24.0 ≤ BMI < 28.0 | 57,858 | 19.3 |
| BMI ≥ 28.0 | 11,457 | 3.8 |
| Unknown | 51,410 | 17.2 |
| Tobacco use | ||
| Never smoke | 196,412 | 65.6 |
| Prior smoker | 4948 | 1.7 |
| Current smoker | 46,854 | 15.6 |
| Unknown | 51,396 | 17.2 |
| Drinking habit | ||
| Never drink | 197,481 | 65.9 |
| Prior alcohol user | 5,107 | 1.7 |
| Current alcohol user | 45,348 | 15.1 |
| Unknown | 51,674 | 17.3 |
| Chronic bronchitis | ||
| Yes | 3381 | 1.1 |
| No | 244,041 | 81.5 |
| Unknown | 52,188 | 17.42 |
| Pneumoconiosis | ||
| Yes | 178 | < 0.1 |
| No | 247,993 | 82.8 |
| Unknown | 51,439 | 17.2 |
| Average family annual income per capita* | ||
| Higher than average | 91,203 | 33.0 |
| Lower than average | 185,220 | 67.0 |
| Average family living area per capita* | ||
| Higher than average | 105,812 | 38.2 |
| Lower than average | 171,007 | 61.8 |
Note: * Missing values existed